Finding the Fourth Proportional to 208,402.17, 287,595.26 and 112,908.84
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Solution
The fourth proportional to 208,402.17, 287,595.26 and 112,908.84 is: 155,814.34
Step by Step Solution
- Step 1: Write the proportion equation
208,402.17 : 287,595.26 = 112,908.84 : x - Step 2: Convert to fraction form
208,402.17/287,595.26 = 112,908.84/x - Step 3: Cross multiply
208,402.17x = 287,595.26 × 112,908.84 - Step 4: Simplify right side
208,402.17x = 32,472,047,196.10 - Step 5: Solve for x
x = 32,472,047,196.10/208,402.17 - Step 6: Final answer
x = 155,814.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.